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std::ranges...ange::begin(3) C++ Standard Libary std::ranges...ange::begin(3) NAME std::ranges::subrange::begin - std::ranges::subrange::begin Synopsis constexpr I begin() const requires std::copyable<I>; (1) (since C++20) [[nodiscard]] constexpr I begin() requires (!std::copyable<I>); (2) (since C++20) Obtains the iterator to the first element of the subrange, or the end iterator if the view is empty. range-begin-end.svg 1) Returns a copy of the stored iterator if the iterator type is copyable. 2) Returns an iterator move-constructed from the stored iterator if the iterator type is not copyable. Parameters (none) Return value 1) An iterator copy-constructed from the stored iterator. 2) An iterator move-constructed from the stored iterator. Notes A call to (2) may leave the stored iterator in a valid but unspeci- fied state, depending on the behavior of the move constructor of I. Example This section is incomplete Reason: no example See also end obtains the sentinel (C++20) (public member function) begin cbegin returns an iterator to the beginning of a container or array (C++11) (function template) (C++14) ranges::begin returns an iterator to the beginning of a range (C++20) (customization point object) Category: * Todo no example http://cppreference.com 2024.06.10 std::ranges...ange::begin(3)
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